New stuff in 2009 and 2010:
-Mickey's Fun Wheel replaced Sun Wheel
-Games of the Boardwalk on Paradise Pier reopened and look great
-Silly Symphony Swings replaced Orange Stinger (should open by May/June 2010)
-World of Color water nighttime spectacular opens sometime in May/June 2010 along with the new viewing area
-New Toy Story Midway Mania games coming in June 2010
-Permanent route between Tower of Terror and Bugsland completed by summer 2010
-The main street of Hollywood Pictures Backlot is under extreme construction
-Captain EO replaced Honey! I Shrunk the Audience in Tomorrowland
-Great Moments with Mr. Lincoln reopened with an all new Abe Lincoln Audio-Animatronic
-Star Tours will be closed in October to replace the film with ST2. It won't be open in December
-Fantasmic has gotten its new dragon working, and the Rivers of America is getting majorly refurbished right now until June
I'm sure there's more, but that's a start.